Concord Ultra
11
Note  
The panel comes with fac-
tory programmed onboard 
hardwire zones. Install 
2k-ohm, end of line (EOL) 
resistors on all unused fac-
tory programmed onboard 
hardwire zones. If you don’t 
want to install EOL resistors, 
delete any unused zones 
from memory. See Table 8 
for onboard hardwire zone 
factory programming.
Connecting Detection Devices to Panel Zone Inputs
Zone inputs 1 through 8 are supervised using included 2k-ohm, end-of-line resistors at the last 
device on each circuit. All eight zones accept either normally open (N/O) or normally closed (N/
C) detection devices.
Connecting Intrusion Detection Devices
The graphics in Figure 7 show the typical wiring for N/C and N/O door/window intrusion detec-
tion and for a Detection Systems model DS922 (part no. 13-082) motion detector. The minimum 
available panel voltage for hardwired PIR motion detectors is 8.5 VDC (9.5 VDC for UL listed 
installations).
Note  
When using 2-wire smoke detectors on zone 8, the Two-Wire Smoke setting (in program mode) must be 
turned on before entering the 
LEARN SENSORS menu. See ONBOARD OPTIONS—INPUTS in the section 
“Programming the Panel” for complete details.
Figure 7. Wiring Intrusion Detection
Connecting 2-Wire Smoke Detectors
Zone input 8 can be set up (in program mode) to accept the following 12 VDC, 2-wire smoke 
detectors:
• System Sensor models 2100D, 2100TD, 2100S, 2100TS, 2400, 2400TH
• ESL models 429AT, 521B, 521BXT—(models 521B and 521BXT require the following dip 
switch settings: 1-on, 2-off)
Use only the 2-wire smoke detector models described above. Alarm signals from other 
detectors may not be processed correctly if the panel has lost AC power and is operat-
ing only from the backup battery.
When set up for 2-wire smoke detectors, zone 8 can handle up to 10 smoke detectors with 
120 uA maximum idle current per detector. Maximum total loop current allowed in an alarm con-
dition is 100 mA. Connect one or more, 2-wire smoke detectors to the panel as shown in 
Figure 8.
L P
-
+
L N
4
2 0 2 1
     
  
 
  
  
 
Panel Terminals
2k Ohm EOL
Resistor 49-454
Normally Open
(N/O) Contacts in
Parallel
2k Ohm EOL
Resistor 49-454
Normally
Closed
(N/C)
Contacts
In Series
Zone 2
GND
Zone 3
Panel
Terminals
2k Ohm EOL Resistor 49-454
(Locate at Sensor)
BUS
+12
GND
7
Zone
Motion
Detector
Caution
!